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        <title>Data::UUID - Globally/Universally Unique Identifiers (GUIDs/UUIDs) - metacpan.org</title>
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    <li class="nav-header no-margin-top">
      <div class="ttip" data-toggle="tooltip" data-placement="bottom" title="The date that this version of Data-UUID was released.">
      <span class="relatize">12 Apr 2020 18:43:57 UTC</span>
    </li>
  <li>
    Distribution: <a href="https://metacpan.org/dist/Data-UUID">Data-UUID</a>
  </li>
  <li>
    Module version: 1.226
  </li>
  <li>
    <a data-keyboard-shortcut="g s" href="https://metacpan.org/dist/Data-UUID/source/UUID.pm">Source</a>
    (<a href="https://metacpan.org/dist/Data-UUID/source/UUID.pm?raw=1">raw</a>)
  </li>
  <li>
    <a data-keyboard-shortcut="g b" href="https://metacpan.org/dist/Data-UUID/source">Browse</a>
    (<a href="https://metacpan.org/dist/Data-UUID/source?raw=1">raw</a>)
  </li>
    <li>
      <a data-keyboard-shortcut="g c" href="https://metacpan.org/dist/Data-UUID/changes">Changes</a>
    </li>
    <li>
      <a class="nopopup" href="https://metacpan.org/dist/Data-UUID/contribute">How to Contribute</a>
    </li>
    <li>
        <a rel="noopener nofollow" data-keyboard-shortcut="g r" href="https://github.com/rjbs/Data-UUID">Repository</a>
    </li>
    <li>
      <a rel="noopener nofollow" data-keyboard-shortcut="g i" href="https://github.com/rjbs/Data-UUID/issues">Issues</a>
      (19)
    </li>
    <li>
      <a rel="noopener nofollow" href="http://matrix.cpantesters.org/?dist=Data-UUID+1.226" title="Matrix">Testers</a>
        <span title="(pass / fail / na)">(<a rel="noopener nofollow" href="https://www.cpantesters.org/distro/D/Data-UUID.html?oncpan=1&amp;distmat=1&amp;version=1.226&amp;grade=2" style="color: #090">5905</a> / <a rel="noopener nofollow" href="https://www.cpantesters.org/distro/D/Data-UUID.html?oncpan=1&amp;distmat=1&amp;version=1.226&amp;grade=3" style="color: #900">2</a> / <a rel="noopener nofollow" href="https://www.cpantesters.org/distro/D/Data-UUID.html?oncpan=1&amp;distmat=1&amp;version=1.226&amp;grade=4">0</a>)</span>
    </li>
    <li>
      <a rel="noopener nofollow" href="http://cpants.cpanauthors.org/release/RJBS/Data-UUID-1.226">Kwalitee</a>
    </li>
    <li>
      <div class="ttip" data-toggle="tooltip" data-placement="bottom" title="The # people with an indexing permission on Data-UUID who have released something to CPAN in the last 2 years (i.e. the # people likely able to release critical fixes in a timely manner)">
      Bus factor: 2
      </div>
    </li>
    <li>
      <a rel="noopener nofollow" href="http://cpancover.com/latest/Data-UUID-1.226/index.html">82.59% Coverage </a>
    </li>
    <li>
      License: bsd
    </li>
    <li class="nav-header">Activity</li>
    <li>
<div class="activity-graph">
    <img src="https://metacpan.org/dist/Data-UUID/activity.svg?res=month" />
    <div class="comment">24 month</div>
</div>
    </li>
    <li class="nav-header">Tools</li>
    <li>
      <a itemprop="downloadUrl" href="https://cpan.metacpan.org/authors/id/R/RJ/RJBS/Data-UUID-1.226.tar.gz">
      Download (<span itemprop="fileSize">17.23KB</span>)</a>
    </li>
    <li>
      <a href="https://explorer.metacpan.org/?url=%2Fmodule%2FRJBS%2FData-UUID-1.226%2FUUID.pm">
        MetaCPAN Explorer
      </a>
    </li>
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      <a href="https://metacpan.org/dist/Data-UUID/permissions">
        Permissions
      </a>
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      <a href="https://metacpan.org/dist/Data-UUID/releases.rss">
        Subscribe to distribution
      </a>
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        Install Instructions
      </button>
    </li>
    <li>
      <form action="https://metacpan.org/search">
        <input type="hidden" name="q" value="dist:Data-UUID">
        <input type="search" name="q" placeholder="Search distribution" class="form-control tool-bar-form">
        <input type="submit" style="display: none">
      </form>
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    <li>
      <form action="https://grep.metacpan.org/search">
        <input type="hidden" name="qd" value="Data-UUID">
        <input type="hidden" name="source" value="metacpan">
        <input type="search" name="q" placeholder="grep distribution" class="form-control tool-bar-form">
        <input type="submit" style="display: none">
     </form>
    </li>
    <li class="version-jump">
<select onchange="document.location.href=&#39;/release/&#39;+this.value+&#39;/view/UUID.pm&#39;" class="form-control tool-bar-form">
  <option disabled selected>Jump to version</option>
<option
  disabled
  value="RJBS/Data-UUID-1.226"
>1.226
  (RJBS on 2020-04-12)</option>
<option
  
  value="RJBS/Data-UUID-1.225"
>1.225
  (RJBS on 2020-04-12)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.11"
>0.11
  (AGOLOMSH on 2003-08-27)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.10"
>0.10
  (AGOLOMSH on 2003-07-17)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.09"
>0.09
  (AGOLOMSH on 2003-02-26)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.08"
>0.08
  (AGOLOMSH on 2002-11-29)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.07"
>0.07
  (AGOLOMSH on 2002-06-12)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.06"
>0.06
  (AGOLOMSH on 2002-03-11)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.05"
>0.05
  (AGOLOMSH on 2002-02-13)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.04"
>0.04
  (AGOLOMSH on 2001-12-12)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.03"
>0.03
  (AGOLOMSH on 2001-11-05)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.02"
>0.02
  (AGOLOMSH on 2001-10-31)</option>
<optgroup label="BackPAN">'
<option
  
  value="RJBS/Data-UUID-1.224"
>1.224
  (RJBS on 2019-03-02)</option>
<option
  
  value="RJBS/Data-UUID-1.223-TRIAL"
>1.223-TRIAL DEV
  (RJBS on 2019-02-25)</option>
<option
  
  value="RJBS/Data-UUID-1.222-TRIAL"
>1.222-TRIAL DEV
  (RJBS on 2018-04-29)</option>
<option
  
  value="RJBS/Data-UUID-1.221"
>1.221
  (RJBS on 2015-08-10)</option>
<option
  
  value="RJBS/Data-UUID-1.220"
>1.220
  (RJBS on 2014-12-16)</option>
<option
  
  value="RJBS/Data-UUID-1.219"
>1.219
  (RJBS on 2013-07-07)</option>
<option
  
  value="RJBS/Data-UUID-1.218"
>1.218
  (RJBS on 2012-08-01)</option>
<option
  
  value="RJBS/Data-UUID-1.217"
>1.217
  (RJBS on 2010-09-14)</option>
<option
  
  value="RJBS/Data-UUID-1.216"
>1.216
  (RJBS on 2010-09-04)</option>
<option
  
  value="RJBS/Data-UUID-1.215"
>1.215
  (RJBS on 2010-05-25)</option>
<option
  
  value="RJBS/Data-UUID-1.214-TRIAL"
>1.214-TRIAL DEV
  (RJBS on 2010-05-15)</option>
<option
  
  value="RJBS/Data-UUID-1.213-TRIAL"
>1.213-TRIAL DEV
  (RJBS on 2010-05-09)</option>
<option
  
  value="RJBS/Data-UUID-1.212-TRIAL"
>1.212-TRIAL DEV
  (RJBS on 2010-05-07)</option>
<option
  
  value="RJBS/Data-UUID-1.211-TRIAL"
>1.211-TRIAL DEV
  (RJBS on 2010-05-07)</option>
<option
  
  value="RJBS/Data-UUID-1.210-TRIAL"
>1.210-TRIAL DEV
  (RJBS on 2010-05-07)</option>
<option
  
  value="RJBS/Data-UUID-1.203"
>1.203
  (RJBS on 2009-11-03)</option>
<option
  
  value="RJBS/Data-UUID-1.202"
>1.202
  (RJBS on 2009-06-15)</option>
<option
  
  value="RJBS/Data-UUID-1.201"
>1.201
  (RJBS on 2009-04-18)</option>
<option
  
  value="RJBS/Data-UUID-1.200_02"
>1.200_02 DEV
  (RJBS on 2008-11-11)</option>
<option
  
  value="RJBS/Data-UUID-1.200_01"
>1.200_01 DEV
  (RJBS on 2008-11-02)</option>
<option
  
  value="RJBS/Data-UUID-1.149"
>1.149
  (RJBS on 2008-11-01)</option>
<option
  
  value="RJBS/Data-UUID-1.148"
>1.148
  (RJBS on 2007-03-08)</option>
<option
  
  value="RJBS/Data-UUID-0.148"
>0.148
  (RJBS on 2006-11-16)</option>
<option
  
  value="RJBS/Data-UUID-0.147_01"
>0.147_01 DEV
  (RJBS on 2006-11-16)</option>
<option
  
  value="RJBS/Data-UUID-0.146"
>0.146
  (RJBS on 2006-11-15)</option>
<option
  
  value="RJBS/Data-UUID-0.145"
>0.145
  (RJBS on 2006-09-19)</option>
<option
  
  value="RJBS/Data-UUID-0.143"
>0.143
  (RJBS on 2006-09-18)</option>
<option
  
  value="RJBS/Data-UUID-0.142"
>0.142
  (RJBS on 2006-09-06)</option>
<option
  
  value="RJBS/Data-UUID-0.141"
>0.141
  (RJBS on 2006-09-06)</option>
<option
  
  value="RJBS/Data-UUID-0.14"
>0.14
  (RJBS on 2006-03-18)</option>
<option
  
  value="RJBS/Data-UUID-0.13"
>0.13
  (RJBS on 2006-02-25)</option>
<option
  
  value="RJBS/Data-UUID-0.12_01"
>0.12_01 DEV
  (RJBS on 2006-02-24)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.01"
>0.01
  (AGOLOMSH on 2001-10-30)</option>
</optgroup>
</select>
    </li>
    <li class="version-diff">
<select onchange="document.location.href='/release/RJBS/Data-UUID-1.226/diff/' + encodeURIComponent(this.value) + '/UUID.pm'
" class="form-control tool-bar-form">
  <option disabled selected>Diff with version</option>
<option
  disabled
  value="RJBS/Data-UUID-1.226"
>1.226
  (RJBS on 2020-04-12)</option>
<option
  
  value="RJBS/Data-UUID-1.225"
>1.225
  (RJBS on 2020-04-12)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.11"
>0.11
  (AGOLOMSH on 2003-08-27)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.10"
>0.10
  (AGOLOMSH on 2003-07-17)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.09"
>0.09
  (AGOLOMSH on 2003-02-26)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.08"
>0.08
  (AGOLOMSH on 2002-11-29)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.07"
>0.07
  (AGOLOMSH on 2002-06-12)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.06"
>0.06
  (AGOLOMSH on 2002-03-11)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.05"
>0.05
  (AGOLOMSH on 2002-02-13)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.04"
>0.04
  (AGOLOMSH on 2001-12-12)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.03"
>0.03
  (AGOLOMSH on 2001-11-05)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.02"
>0.02
  (AGOLOMSH on 2001-10-31)</option>
<optgroup label="BackPAN">'
<option
  
  value="RJBS/Data-UUID-1.224"
>1.224
  (RJBS on 2019-03-02)</option>
<option
  
  value="RJBS/Data-UUID-1.223-TRIAL"
>1.223-TRIAL DEV
  (RJBS on 2019-02-25)</option>
<option
  
  value="RJBS/Data-UUID-1.222-TRIAL"
>1.222-TRIAL DEV
  (RJBS on 2018-04-29)</option>
<option
  
  value="RJBS/Data-UUID-1.221"
>1.221
  (RJBS on 2015-08-10)</option>
<option
  
  value="RJBS/Data-UUID-1.220"
>1.220
  (RJBS on 2014-12-16)</option>
<option
  
  value="RJBS/Data-UUID-1.219"
>1.219
  (RJBS on 2013-07-07)</option>
<option
  
  value="RJBS/Data-UUID-1.218"
>1.218
  (RJBS on 2012-08-01)</option>
<option
  
  value="RJBS/Data-UUID-1.217"
>1.217
  (RJBS on 2010-09-14)</option>
<option
  
  value="RJBS/Data-UUID-1.216"
>1.216
  (RJBS on 2010-09-04)</option>
<option
  
  value="RJBS/Data-UUID-1.215"
>1.215
  (RJBS on 2010-05-25)</option>
<option
  
  value="RJBS/Data-UUID-1.214-TRIAL"
>1.214-TRIAL DEV
  (RJBS on 2010-05-15)</option>
<option
  
  value="RJBS/Data-UUID-1.213-TRIAL"
>1.213-TRIAL DEV
  (RJBS on 2010-05-09)</option>
<option
  
  value="RJBS/Data-UUID-1.212-TRIAL"
>1.212-TRIAL DEV
  (RJBS on 2010-05-07)</option>
<option
  
  value="RJBS/Data-UUID-1.211-TRIAL"
>1.211-TRIAL DEV
  (RJBS on 2010-05-07)</option>
<option
  
  value="RJBS/Data-UUID-1.210-TRIAL"
>1.210-TRIAL DEV
  (RJBS on 2010-05-07)</option>
<option
  
  value="RJBS/Data-UUID-1.203"
>1.203
  (RJBS on 2009-11-03)</option>
<option
  
  value="RJBS/Data-UUID-1.202"
>1.202
  (RJBS on 2009-06-15)</option>
<option
  
  value="RJBS/Data-UUID-1.201"
>1.201
  (RJBS on 2009-04-18)</option>
<option
  
  value="RJBS/Data-UUID-1.200_02"
>1.200_02 DEV
  (RJBS on 2008-11-11)</option>
<option
  
  value="RJBS/Data-UUID-1.200_01"
>1.200_01 DEV
  (RJBS on 2008-11-02)</option>
<option
  
  value="RJBS/Data-UUID-1.149"
>1.149
  (RJBS on 2008-11-01)</option>
<option
  
  value="RJBS/Data-UUID-1.148"
>1.148
  (RJBS on 2007-03-08)</option>
<option
  
  value="RJBS/Data-UUID-0.148"
>0.148
  (RJBS on 2006-11-16)</option>
<option
  
  value="RJBS/Data-UUID-0.147_01"
>0.147_01 DEV
  (RJBS on 2006-11-16)</option>
<option
  
  value="RJBS/Data-UUID-0.146"
>0.146
  (RJBS on 2006-11-15)</option>
<option
  
  value="RJBS/Data-UUID-0.145"
>0.145
  (RJBS on 2006-09-19)</option>
<option
  
  value="RJBS/Data-UUID-0.143"
>0.143
  (RJBS on 2006-09-18)</option>
<option
  
  value="RJBS/Data-UUID-0.142"
>0.142
  (RJBS on 2006-09-06)</option>
<option
  
  value="RJBS/Data-UUID-0.141"
>0.141
  (RJBS on 2006-09-06)</option>
<option
  
  value="RJBS/Data-UUID-0.14"
>0.14
  (RJBS on 2006-03-18)</option>
<option
  
  value="RJBS/Data-UUID-0.13"
>0.13
  (RJBS on 2006-02-25)</option>
<option
  
  value="RJBS/Data-UUID-0.12_01"
>0.12_01 DEV
  (RJBS on 2006-02-24)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.01"
>0.01
  (AGOLOMSH on 2001-10-30)</option>
</optgroup>
</select>
    </li>

    <li>
<ul class="dependencies">
  <li class="nav-header">Dependencies</li>
  <li><a href="https://metacpan.org/pod/Digest::MD5" title="Digest::MD5" class="ellipsis">Digest::MD5</a></li>
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    14 non-PAUSE users
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    >
      Ricardo Signes &lt;rjbs[at]cpan.org&gt;
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<option
  selected
  value="RJBS/Data-UUID-1.226"
>1.226
  (RJBS on 2020-04-12)</option>
<option
  
  value="RJBS/Data-UUID-1.225"
>1.225
  (RJBS on 2020-04-12)</option>
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  value="AGOLOMSH/Data-UUID-0.11"
>0.11
  (AGOLOMSH on 2003-08-27)</option>
<option
  
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>0.10
  (AGOLOMSH on 2003-07-17)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.09"
>0.09
  (AGOLOMSH on 2003-02-26)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.08"
>0.08
  (AGOLOMSH on 2002-11-29)</option>
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  value="AGOLOMSH/Data-UUID-0.07"
>0.07
  (AGOLOMSH on 2002-06-12)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.06"
>0.06
  (AGOLOMSH on 2002-03-11)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.05"
>0.05
  (AGOLOMSH on 2002-02-13)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.04"
>0.04
  (AGOLOMSH on 2001-12-12)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.03"
>0.03
  (AGOLOMSH on 2001-11-05)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.02"
>0.02
  (AGOLOMSH on 2001-10-31)</option>
<optgroup label="BackPAN">'
<option
  
  value="RJBS/Data-UUID-1.224"
>1.224
  (RJBS on 2019-03-02)</option>
<option
  
  value="RJBS/Data-UUID-1.223-TRIAL"
>1.223-TRIAL DEV
  (RJBS on 2019-02-25)</option>
<option
  
  value="RJBS/Data-UUID-1.222-TRIAL"
>1.222-TRIAL DEV
  (RJBS on 2018-04-29)</option>
<option
  
  value="RJBS/Data-UUID-1.221"
>1.221
  (RJBS on 2015-08-10)</option>
<option
  
  value="RJBS/Data-UUID-1.220"
>1.220
  (RJBS on 2014-12-16)</option>
<option
  
  value="RJBS/Data-UUID-1.219"
>1.219
  (RJBS on 2013-07-07)</option>
<option
  
  value="RJBS/Data-UUID-1.218"
>1.218
  (RJBS on 2012-08-01)</option>
<option
  
  value="RJBS/Data-UUID-1.217"
>1.217
  (RJBS on 2010-09-14)</option>
<option
  
  value="RJBS/Data-UUID-1.216"
>1.216
  (RJBS on 2010-09-04)</option>
<option
  
  value="RJBS/Data-UUID-1.215"
>1.215
  (RJBS on 2010-05-25)</option>
<option
  
  value="RJBS/Data-UUID-1.214-TRIAL"
>1.214-TRIAL DEV
  (RJBS on 2010-05-15)</option>
<option
  
  value="RJBS/Data-UUID-1.213-TRIAL"
>1.213-TRIAL DEV
  (RJBS on 2010-05-09)</option>
<option
  
  value="RJBS/Data-UUID-1.212-TRIAL"
>1.212-TRIAL DEV
  (RJBS on 2010-05-07)</option>
<option
  
  value="RJBS/Data-UUID-1.211-TRIAL"
>1.211-TRIAL DEV
  (RJBS on 2010-05-07)</option>
<option
  
  value="RJBS/Data-UUID-1.210-TRIAL"
>1.210-TRIAL DEV
  (RJBS on 2010-05-07)</option>
<option
  
  value="RJBS/Data-UUID-1.203"
>1.203
  (RJBS on 2009-11-03)</option>
<option
  
  value="RJBS/Data-UUID-1.202"
>1.202
  (RJBS on 2009-06-15)</option>
<option
  
  value="RJBS/Data-UUID-1.201"
>1.201
  (RJBS on 2009-04-18)</option>
<option
  
  value="RJBS/Data-UUID-1.200_02"
>1.200_02 DEV
  (RJBS on 2008-11-11)</option>
<option
  
  value="RJBS/Data-UUID-1.200_01"
>1.200_01 DEV
  (RJBS on 2008-11-02)</option>
<option
  
  value="RJBS/Data-UUID-1.149"
>1.149
  (RJBS on 2008-11-01)</option>
<option
  
  value="RJBS/Data-UUID-1.148"
>1.148
  (RJBS on 2007-03-08)</option>
<option
  
  value="RJBS/Data-UUID-0.148"
>0.148
  (RJBS on 2006-11-16)</option>
<option
  
  value="RJBS/Data-UUID-0.147_01"
>0.147_01 DEV
  (RJBS on 2006-11-16)</option>
<option
  
  value="RJBS/Data-UUID-0.146"
>0.146
  (RJBS on 2006-11-15)</option>
<option
  
  value="RJBS/Data-UUID-0.145"
>0.145
  (RJBS on 2006-09-19)</option>
<option
  
  value="RJBS/Data-UUID-0.143"
>0.143
  (RJBS on 2006-09-18)</option>
<option
  
  value="RJBS/Data-UUID-0.142"
>0.142
  (RJBS on 2006-09-06)</option>
<option
  
  value="RJBS/Data-UUID-0.141"
>0.141
  (RJBS on 2006-09-06)</option>
<option
  
  value="RJBS/Data-UUID-0.14"
>0.14
  (RJBS on 2006-03-18)</option>
<option
  
  value="RJBS/Data-UUID-0.13"
>0.13
  (RJBS on 2006-02-25)</option>
<option
  
  value="RJBS/Data-UUID-0.12_01"
>0.12_01 DEV
  (RJBS on 2006-02-24)</option>
<option
  
  value="AGOLOMSH/Data-UUID-0.01"
>0.01
  (AGOLOMSH on 2001-10-30)</option>
</optgroup>
</select>
    <a data-keyboard-shortcut="g d" class="release-name" href="https://metacpan.org/dist/Data-UUID">Data-UUID-1.226</a>
  </div>
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      <rect x="20"  y="0" width="4" height="15" fill="#e4e2e2" />
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          <main class="content">


<nav class="toc">
  <div class="toc-header"><strong>Contents</strong></div>
<ul>
  <li><a href="./Data::UUID.html#NAME">NAME</a></li>
  <li><a href="./Data::UUID.html#SEE-INSTEAD?">SEE INSTEAD?</a></li>
  <li><a href="./Data::UUID.html#SYNOPSIS">SYNOPSIS</a></li>
  <li><a href="./Data::UUID.html#DESCRIPTION">DESCRIPTION</a>
    <ul>
      <li><a href="./Data::UUID.html#EXPORT">EXPORT</a></li>
    </ul>
  </li>
  <li><a href="./Data::UUID.html#AUTHOR">AUTHOR</a></li>
  <li><a href="./Data::UUID.html#SEE-ALSO">SEE ALSO</a></li>
</ul></nav>
<div class="pod anchors">
<h1 id="NAME">NAME</h1>

<p>Data::UUID - Globally/Universally Unique Identifiers (GUIDs/UUIDs)</p>

<h1 id="SEE-INSTEAD?"><a id="SEE"></a><a id="SEE-INSTEAD"></a>SEE INSTEAD?</h1>

<p>The module <a href="https://metacpan.org/pod/Data::GUID">Data::GUID</a> provides another interface for generating GUIDs. Right now, it relies on Data::UUID, but it may not in the future. Its interface may be just a little more straightforward for the average Perl programer.</p>

<h1 id="SYNOPSIS">SYNOPSIS</h1>

<pre><code>  use Data::UUID;
  
  $ug    = Data::UUID-&gt;new;
  $uuid1 = $ug-&gt;create();
  $uuid2 = $ug-&gt;create_from_name(&lt;namespace&gt;, &lt;name&gt;);

  $res   = $ug-&gt;compare($uuid1, $uuid2);

  $str   = $ug-&gt;to_string( $uuid );
  $uuid  = $ug-&gt;from_string( $str );</code></pre>

<h1 id="DESCRIPTION">DESCRIPTION</h1>

<p>This module provides a framework for generating v3 UUIDs (Universally Unique Identifiers, also known as GUIDs (Globally Unique Identifiers). A UUID is 128 bits long, and is guaranteed to be different from all other UUIDs/GUIDs generated until 3400 CE.</p>

<p>UUIDs were originally used in the Network Computing System (NCS) and later in the Open Software Foundation&#39;s (OSF) Distributed Computing Environment. Currently many different technologies rely on UUIDs to provide unique identity for various software components. Microsoft COM/DCOM for instance, uses GUIDs very extensively to uniquely identify classes, applications and components across network-connected systems.</p>

<p>The algorithm for UUID generation, used by this extension, is described in the Internet Draft &quot;UUIDs and GUIDs&quot; by Paul J. Leach and Rich Salz. (See RFC 4122.) It provides reasonably efficient and reliable framework for generating UUIDs and supports fairly high allocation rates -- 10 million per second per machine -- and therefore is suitable for identifying both extremely short-lived and very persistent objects on a given system as well as across the network.</p>

<p>This modules provides several methods to create a UUID. In all methods, <code>&lt;namespace&gt;</code> is a UUID and <code>&lt;name&gt;</code> is a free form string.</p>

<pre><code>   # creates binary (16 byte long binary value) UUID.
   $ug-&gt;create();
   $ug-&gt;create_bin();

   # creates binary (16-byte long binary value) UUID based on particular
   # namespace and name string.
   $ug-&gt;create_from_name(&lt;namespace&gt;, &lt;name&gt;);
   $ug-&gt;create_from_name_bin(&lt;namespace&gt;, &lt;name&gt;);

   # creates UUID string, using conventional UUID string format,
   # such as: 4162F712-1DD2-11B2-B17E-C09EFE1DC403
   # Note that digits A-F are capitalized, which is contrary to rfc4122
   $ug-&gt;create_str();
   $ug-&gt;create_from_name_str(&lt;namespace&gt;, &lt;name&gt;);

   # creates UUID string as a hex string,
   # such as: 0x4162F7121DD211B2B17EC09EFE1DC403
   # Note that digits A-F are capitalized, which is contrary to rfc4122
   $ug-&gt;create_hex();
   $ug-&gt;create_from_name_hex(&lt;namespace&gt;, &lt;name&gt;);

   # creates UUID string as a Base64-encoded string
   $ug-&gt;create_b64();
   $ug-&gt;create_from_name_b64(&lt;namespace&gt;, &lt;name&gt;);

   Binary UUIDs can be converted to printable strings using following methods:

   # convert to conventional string representation
   $ug-&gt;to_string(&lt;uuid&gt;);

   # convert to hex string (using upper, rather than lower, case letters)
   $ug-&gt;to_hexstring(&lt;uuid&gt;);

   # convert to Base64-encoded string
   $ug-&gt;to_b64string(&lt;uuid&gt;);

   Conversely, string UUIDs can be converted back to binary form:

   # recreate binary UUID from string
   $ug-&gt;from_string(&lt;uuid&gt;);
   $ug-&gt;from_hexstring(&lt;uuid&gt;);

   # recreate binary UUID from Base64-encoded string
   $ug-&gt;from_b64string(&lt;uuid&gt;);

   Finally, two binary UUIDs can be compared using the following method:

   # returns -1, 0 or 1 depending on whether uuid1 less
   # than, equals to, or greater than uuid2
   $ug-&gt;compare(&lt;uuid1&gt;, &lt;uuid2&gt;);</code></pre>

<p>Examples:</p>

<pre><code>   use Data::UUID;

   # this creates a new UUID in string form, based on the standard namespace
   # UUID NameSpace_URL and name &quot;www.mycompany.com&quot;

   $ug = Data::UUID-&gt;new;
   print $ug-&gt;create_from_name_str(NameSpace_URL, &quot;www.mycompany.com&quot;);</code></pre>

<h2 id="EXPORT">EXPORT</h2>

<p>The module allows exporting of several standard namespace UUIDs:</p>

<dl>

<dt id="NameSpace_DNS">NameSpace_DNS</dt>
<dd>

</dd>
<dt id="NameSpace_URL">NameSpace_URL</dt>
<dd>

</dd>
<dt id="NameSpace_OID">NameSpace_OID</dt>
<dd>

</dd>
<dt id="NameSpace_X500">NameSpace_X500</dt>
<dd>

</dd>
</dl>

<h1 id="AUTHOR">AUTHOR</h1>

<p>Alexander Golomshtok &lt;agolomsh@cpan.org&gt;</p>

<h1 id="SEE-ALSO"><a id="SEE1"></a>SEE ALSO</h1>

<p>The Internet Draft &quot;UUIDs and GUIDs&quot; by Paul J. Leach and Rich Salz (RFC 4122)</p></div>

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        <p><a href="https://metacpan.org/dist/App-cpanminus/view/bin/cpanm">cpanm</a></p>
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                <button type="button" class="close" data-dismiss="modal">&times;</button>
                <h4 class="modal-title">Keyboard Shortcuts</h4>
              </div>
              <div class="modal-body row">
<div class="col-md-6">
  <table class="table keyboard-shortcuts">
    <thead>
      <tr>
        <th></th>
        <th>Global</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td class="keys">
          <kbd>s</kbd>
        </td>
        <td>Focus search bar</td>
      </tr>
      <tr>
        <td class="keys">
          <kbd>?</kbd>
        </td>
        <td>Bring up this help dialog</td>
      </tr>
    </tbody>
  </table>

  <table class="table keyboard-shortcuts">
    <thead>
      <tr>
        <th></th>
        <th>GitHub</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td class="keys">
          <kbd>g</kbd> <kbd>p</kbd>
        </td>
        <td>Go to pull requests</td>
      </tr>
      <tr>
        <td class="keys">
          <kbd>g</kbd> <kbd>i</kbd>
        </td>
        <td>go to github issues (only if github is preferred repository)</td>
      </tr>
    </tbody>
  </table>
</div>

<div class="col-md-6">
  <table class="table keyboard-shortcuts">
    <thead>
      <tr>
        <th></th>
        <th>POD</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td class="keys">
          <kbd>g</kbd> <kbd>a</kbd>
        </td>
        <td>Go to author</td>
      </tr>
      <tr>
        <td class="keys">
          <kbd>g</kbd> <kbd>c</kbd>
        </td>
        <td>Go to changes</td>
      </tr>
      <tr>
        <td class="keys">
          <kbd>g</kbd> <kbd>i</kbd>
        </td>
        <td>Go to issues</td>
      </tr>
      <tr>
        <td class="keys">
          <kbd>g</kbd> <kbd>d</kbd>
        </td>
        <td>Go to dist</td>
      </tr>
      <tr>
        <td class="keys">
          <kbd>g</kbd> <kbd>r</kbd>
        </td>
        <td>Go to repository/SCM</td>
      </tr>
      <tr>
        <td class="keys">
          <kbd>g</kbd> <kbd>s</kbd>
        </td>
        <td>Go to source</td>
      </tr>
      <tr>
        <td class="keys">
          <kbd>g</kbd> <kbd>b</kbd>
        </td>
        <td>Go to file browse</td>
      </tr>

    </tbody>
  </table>
</div>

<div class="col-md-12">
  <table class="table keyboard-shortcuts">
    <thead>
      <tr>
        <th></th>
        <th>Search terms</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><em>module:</em> (e.g. <a href="https://metacpan.org/search?q=module%3APlugin">module:Plugin</a>)</td>
      </tr>
      <tr>
        <td><em>distribution:</em> (e.g. <a href="https://metacpan.org/search?q=distribution%3ADancer+auth">distribution:Dancer auth</a>)</td>
      </tr>
      <tr>
        <td><em>author:</em> (e.g. <a href="https://metacpan.org/search?q=author%3ASONGMU+Redis">author:SONGMU Redis</a>)</td>
      </tr>
      <tr>
        <td><em>version:</em> (e.g. <a href="https://metacpan.org/search?q=version%3A1.00">version:1.00</a>)</td>
      </tr>
    </tbody>
  </table>
</div>
              </div>
              <div class="modal-footer"></div>
            </div>
          </div>
        </div>
    </body>
</html>
